Geomechanical Tasks Solving in Modelling of Temporary Support Parameters in Sochi Tunnels

Mining method in tunnel construction requires a proper choice and justification of the type of a temporary support. This aspect is highly related to choosing of an appropriate tunnel excavation assembling method. Features of a temporary support influent various factors which tunnel construction process depends on. The study provides relevant Geomechanical tasks defined using Mathematical Modeling. The Department of Tunnels and Undergrounds of Petersburg State Transport University elaborated particular design models and conducted calculations using Finite Element Method to solve a number of Geomechanical tasks occurred during construction of Sochi Tunnels. The study finds out that the project-provided measures did not fully prevent an emergence of soil collapsing zones, though the mountain pressure was totally accomplished by the temporary support in this particular researched case.